Jennifer Aniston: Topless Smartwater Ad!

The 42-year-old Horrible Bosses actress recently told Shape that her best health tips include hydration and lots of sleep!

“I always try to sleep for at least eight hours a night and, of course, water, water, water! I drink 100 ounces of Smartwater every day,” she told the mag. “But occasionally I just have to have a Diet Coke—there’s nothing like it!”